Projet_LMS

Get Homograpy Between Two Image. Run in matlab development enviroment.

包含Jacobi和Seidel两种迭代法，用于求解线性方程，计算简单，收敛快(Contains two kinds of Jacobi and Seidel iterative method for solving linear equations, computing simple, fast convergence)

matlab projects, histogram equalization

If you are a chess player you must know about .... Chess stalemate

遗传算法和神经网络结合的案例，用于非线性规划优化。(Genetic algorithms and neural network case for nonlinear programming optimization)

本文首先介绍了几种LDPC码的编译码算法，同时推导了译码错误概率和密度进化 过程，讨论了信道参数的门限效应。接着对LDPC码二分图中长度为4的环进行了深入 研究，提出了一种LDPC码校验矩阵的消4一环生成算法，采用Matlab和VC++融合编程 方式，完成了此算法的程序设计。此算法不仅可生成二进制LDPC码的校验矩阵，并且 对算法修正后，也可生成多进制LDPC码的校验矩阵。采用此算法后可避免LDPC码译 码过程中的重复迭代，显著提高了短帧LDPC码的误比特率性能。同时对不同参数对 LDPC码性能的影响进行了仿真，得到了一些结论。最后，利用VHDL语言在复杂可编 程逻辑器件(CPLD)上完成了LDPC码编码器的硬件实现。另外，给出了LDPC码译 码器硬件实现的整体结构图，结合对数似然比域内的置信传播迭代译码(LLR-BP)算 法，对译码器的各个模块进行了详细阐述。(Research and implementation of LDPC coding and decoding technology)

这个程序是基于ＭＡＴＡＬＢ平台实现的，由于本程序是自己编的，所以还有不足的地方如那位大侠有好的建议请提出(This procedure is based on the MATALB platform, as a result of this process is allocated its own, so there are less than places such as the heroes who have put forward good suggestions, please)

说明：  电流电压双闭环的PI单相逆变器仿真，自己做的，请指教(Double closed loop PI current and voltage single-phase inverter simulation, make their own, please advise)

如果阵元间距小于半波长，则阵元间会产生耦合。如果阵元间距大于半波长，则阵列上会现多余的旁瓣，从而降低天线阵列的性能。而当阵列间距选取为半波长时，所估测出的效果最优。(If the array element spacing is less than half wavelength, it will produce coupling between array elements. If the array element spacing is greater than half wavelength, the array will now be extra sidelobes, thus reducing the performance of the antenna array. When the array spacing is half wavelength selection, the best estimate the effect.)

matlab的作图 很适合初学者 各种作图都有(matlab mapping is very suitable for beginners of various mapping has)